package com.sky.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.github.xiaoymin.knife4j.core.util.CollectionUtils;
import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.dto.*;
import com.sky.entity.*;
import com.sky.exception.AddressBookBusinessException;
import com.sky.exception.OrderBusinessException;
import com.sky.exception.ShoppingCartBusinessException;
import com.sky.mapper.*;
import com.sky.result.PageResult;
import com.sky.service.OrderService;
import com.sky.utils.HttpClientUtil;
import com.sky.utils.WeChatPayUtil;
import com.sky.vo.OrderPaymentVO;
import com.sky.vo.OrderStatisticsVO;
import com.sky.vo.OrderSubmitVO;
import com.sky.vo.OrderVO;
import com.sky.websocket.WebSocketServer;
import javafx.css.SimpleStyleableStringProperty;
import javafx.css.StyleableStringProperty;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

/**
 * _*_ coding : utf-8 _*_
 *
 * @Time : 2023/7/31 19:47
 * @Author : 计201任思伟
 * @File : OrderServiceImpl
 * @Project : sky-take-out
 */
@Service
public class OrderServiceImpl implements OrderService {

    @Autowired
    private OrderMapper orderMapper;
    @Autowired
    private OrderDetailMapper orderDetailMapper;
    @Autowired
    private AddressBookMapper addressBookMapper;
    @Autowired
    private ShoppingCartMapper shoppingCartMapper;

    @Autowired
    private UserMapper userMapper;

    @Autowired
    private WeChatPayUtil weChatPayUtil;
    @Autowired
    private WebSocketServer webSocketServer;

    //引入百度配置
    @Value("${sky.shop.address}")
    private String shopAddress;

    @Value("${sky.baidu.ak}")
    private String ak;

    /**
     * 用户下单
     *
     * @param ordersSubmitDTO
     * @return
     */
    @Transactional
    public OrderSubmitVO submitOrder(OrdersSubmitDTO ordersSubmitDTO) {
        //订单表order  订单明细表 order_detail
        //1.业务异常 1.地址簿为空 2.购物车数据为空
        AddressBook addressBook = addressBookMapper.getById(ordersSubmitDTO.getAddressBookId());
        if (addressBook == null) {
            //抛出异常
            throw new AddressBookBusinessException(MessageConstant.ADDRESS_BOOK_IS_NULL);
        }
        //检查是否超出配送范围
        checkOutOfRange(addressBook.getCityName()+addressBook.getDistrictName()+addressBook.getDetail());

        //购物车数据
        Long userId = BaseContext.getCurrentId();
        ShoppingCart shoppingCart = new ShoppingCart();
        shoppingCart.setUserId(userId);
        List<ShoppingCart> shoppingCartList = shoppingCartMapper.list(shoppingCart);
        if (shoppingCartList == null || shoppingCartList.size() == 0) {
            throw new ShoppingCartBusinessException(MessageConstant.SHOPPING_CART_IS_NULL);
        }

        //2.向订单表插入一条数据、
        Orders orders = new Orders();
        BeanUtils.copyProperties(ordersSubmitDTO, orders);
        orders.setOrderTime(LocalDateTime.now());
        orders.setPhone(addressBook.getPhone());
        orders.setConsignee(addressBook.getConsignee());
        orders.setUserId(userId);
        orders.setPayStatus(Orders.UN_PAID);
        orders.setStatus(Orders.PENDING_PAYMENT);
        orders.setNumber(String.valueOf(System.currentTimeMillis()));
        orders.setAddress(addressBook.getDetail());

        orderMapper.insert(orders);
        //3.向订单明细表插入n条数据 订单明细与购物车字段名类似
        List<OrderDetail> orderDetailList = new ArrayList<>();
        for (ShoppingCart cart : shoppingCartList) {
            OrderDetail orderDetail = new OrderDetail();
            BeanUtils.copyProperties(cart, orderDetail);
            orderDetail.setOrderId(orders.getId());//设置当前订单明细关联的id
            orderDetailList.add(orderDetail);
        }
        orderDetailMapper.insertBatch(orderDetailList);

        //4.清空购物车数据
        shoppingCartMapper.deleteByUserId(userId);
        //5.封装VO返回数据
        OrderSubmitVO orderSubmitVO = OrderSubmitVO.builder()
                .id(orders.getId())
                .orderNumber(orders.getNumber())
                .orderAmount(orders.getAmount())
                .orderTime(orders.getOrderTime())
                .build();
        return orderSubmitVO;
    }

    /**
     * 历史订单分页查询
     *
     * @param
     * @param pageSize
     * @param status
     * @return
     */
    public PageResult pageQuery(int pageNum, int pageSize, Integer status) {
        //设置分页
        PageHelper.startPage(pageNum, pageSize);
        OrdersPageQueryDTO ordersPageQueryDTO = new OrdersPageQueryDTO();
        ordersPageQueryDTO.setUserId(BaseContext.getCurrentId());
        ordersPageQueryDTO.setStatus(status);

        //分页条件查询
        Page<Orders> page = orderMapper.pageQuery(ordersPageQueryDTO);
        //封装为OrderVO
        List<OrderVO> list = new ArrayList<>();
        //查询出菜单明细
        if (page != null && page.size() > 0) {
            for (Orders orders : page) {
                //订单id
                Long ordersId = orders.getId();

                //查询订单明细
                List<OrderDetail> orderDetails = orderDetailMapper.getByOrderId(ordersId);

                OrderVO orderVO = new OrderVO();
                BeanUtils.copyProperties(orders, orderVO);
                orderVO.setOrderDetailList(orderDetails);

                list.add(orderVO);

            }
        }
        return new PageResult(page.getTotal(), list);
    }

    /**
     * 查询订单详情
     *
     * @param id
     * @return
     */
    public OrderVO details(Long id) {
        //根据id查询Order
        Orders orders = orderMapper.getById(id);

        //根据id查询orderDetail表
        List<OrderDetail> orderDetails = orderDetailMapper.getByOrderId(orders.getId());

        //封装orderVO
        OrderVO orderVO = new OrderVO();
        BeanUtils.copyProperties(orders, orderVO);
        orderVO.setOrderDetailList(orderDetails);

        return orderVO;
    }

    /**
     * 订单取消
     *
     * @param id
     * @return - 待支付和待接单状态下，用户可直接取消订单
     * - 商家已接单状态下，用户取消订单需电话沟通商家
     * - 派送中状态下，用户取消订单需电话沟通商家
     * - 如果在待接单状态下取消订单，需要给用户退款
     * - 取消订单后需要将订单状态修改为“已取消”
     */
    public void UserCancelById(Long id) {
        //1.查询订单是否存在
        //2.查询订单当前状态  status>2 报错
        Orders orderDB = orderMapper.getById(id);
        if (orderDB == null) {
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }

        if (orderDB.getStatus() > 2) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        //创建新orders对象 传入 取消字段
        Orders orders = new Orders();
        orders.setId(orderDB.getId());
        if (orderDB.getStatus().equals(Orders.TO_BE_CONFIRMED)) {
            //修改订单状态为2 退款
            orders.setPayStatus(Orders.REFUND);
        }

        orders.setStatus(Orders.CANCELLED);
        orders.setCancelReason("用户取消");
        orders.setCancelTime(LocalDateTime.now());
        orderMapper.update(orders);

    }

    /**
     * 再来一单
     *
     * @param id
     * @return 通过页面订单号  搜索detail数据 copy到shoppingcart里
     */
    public void repetition(Long id) {
        Long userId = BaseContext.getCurrentId();
        //根据订单id查询订单详情
        List<OrderDetail> orderDetailList = orderDetailMapper.getByOrderId(id);

        //将orderDetailLisst转换为shoppingcart
        List<ShoppingCart> shoppingCartList = orderDetailList.stream().map(orderDetail -> {
            //复制到shoppingcart里
            ShoppingCart shoppingCart = new ShoppingCart();
            BeanUtils.copyProperties(orderDetail, shoppingCart, "id");
            shoppingCart.setUserId(userId);
            shoppingCart.setCreateTime(LocalDateTime.now());

            return shoppingCart;
        }).collect(Collectors.toList());

        //将shoppingcart传入
        shoppingCartMapper.insertBatch(shoppingCartList);

    }

    /**
     * 订单搜索
     *
     * @param ordersPageQueryDTO
     * @return 部分订单需要查询菜品和订单详情 封装VO对象
     */
    public PageResult conditionSerch(OrdersPageQueryDTO ordersPageQueryDTO) {
        //分页
        PageHelper.startPage(ordersPageQueryDTO.getPage(), ordersPageQueryDTO.getPageSize());

        //查询订单
        Page<Orders> page = orderMapper.pageQuery(ordersPageQueryDTO);
        //将order转化为orderVO
        List<OrderVO> orderVOList = new ArrayList<>();
        List<Orders> ordersList = page.getResult();
        if (!CollectionUtils.isEmpty(ordersList)) {
            for (Orders orders : ordersList) {
                OrderVO orderVO = new OrderVO();
                BeanUtils.copyProperties(orders, orderVO);
                //将菜品信息封装到vo
                String orderDishStr = getOrderDishStr(orders);
                orderVO.setOrderDishes(orderDishStr);
                orderVOList.add(orderVO);
            }
        }
        return new PageResult(page.getTotal(), orderVOList);
    }

    /**
     * 根据订单id获取菜品信息
     */
    public String getOrderDishStr(Orders orders) {
        List<OrderDetail> orderDetails = orderDetailMapper.getByOrderId(orders.getId());

        //将每一条菜品信息拼接成字符串
        List<String> orderDishList = orderDetails.stream().map(orderDetail -> {
            String orderDish = orderDetail.getName() + "*" + orderDetail.getNumber() + ";";
            return orderDish;
        }).collect(Collectors.toList());
        return String.join("", orderDishList);
    }

    /**
     * 各个状态的订单数量统计
     *
     * @return
     */
    public OrderStatisticsVO statistics() {
        // 根据状态，分别查询出待接单、待派送、派送中的订单数量
        Integer toBeConfirmed = orderMapper.countStatus(Orders.TO_BE_CONFIRMED);
        Integer confirmed = orderMapper.countStatus(Orders.CONFIRMED);
        Integer deliveryInProgress = orderMapper.countStatus(Orders.DELIVERY_IN_PROGRESS);

        // 将查询出的数据封装到orderStatisticsVO中响应
        OrderStatisticsVO orderStatisticsVO = new OrderStatisticsVO();
        orderStatisticsVO.setToBeConfirmed(toBeConfirmed);
        orderStatisticsVO.setConfirmed(confirmed);
        orderStatisticsVO.setDeliveryInProgress(deliveryInProgress);
        return orderStatisticsVO;
    }

    /**
     * 接单
     *
     * @param ordersConfirmDTO
     * @return
     */
    public void confirm(OrdersConfirmDTO ordersConfirmDTO) {
        Orders orders = Orders.builder()
                .id(ordersConfirmDTO.getId())
                .status(Orders.CONFIRMED)
                .build();
        orderMapper.update(orders);
    }

    /**
     * 拒单
     *
     * @param
     * @return
     */
    public void rejection(OrdersRejectionDTO ordersRejectionDTO) {
        //1.根据id查询订单
        //2,只有状态为2才能拒单
        Orders orderDB = orderMapper.getById(ordersRejectionDTO.getId());
        if (orderDB == null || !orderDB.getStatus().equals(Orders.TO_BE_CONFIRMED)) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        //获取payStatus（这里没有支付功能因此省略）
        Integer payStatus = orderDB.getPayStatus();

        // 拒单需要退款，根据订单id更新订单状态、拒单原因、取消时间
        Orders orders = new Orders();
        orders.setId(orderDB.getId());
        orders.setStatus(Orders.CANCELLED);
        orders.setRejectionReason(ordersRejectionDTO.getRejectionReason());
        orders.setCancelTime(LocalDateTime.now());

        orderMapper.update(orders);

    }

    /**
     * 取消订单
     * @param ordersCancelDTO
     * @return
     * - 取消订单其实就是将订单状态修改为“已取消”
     * - 商家取消订单时需要指定取消原因
     * - 商家取消订单时，如果用户已经完成了支付，需要为用户退款
     */
    public void cancel(OrdersCancelDTO ordersCancelDTO) {
        //取消订单将status设置为6
        //查找订单
        Orders orderDB = orderMapper.getById(ordersCancelDTO.getId());
        //获取支付状态
        Integer payStatus = orderDB.getPayStatus();

        //设置 orders
        Orders orders = new Orders();
        orders.setId(orderDB.getId());
        orders.setCancelReason(ordersCancelDTO.getCancelReason());
        orders.setStatus(Orders.CANCELLED);
        orders.setCancelTime(LocalDateTime.now());

        orderMapper.update(orders);

    }

    /**
     * 派送订单
     *
     * @param id
     */
    public void delivery(Long id) {
        // 根据id查询订单
        Orders ordersDB = orderMapper.getById(id);

        // 校验订单是否存在，并且状态为3
        if (ordersDB == null || !ordersDB.getStatus().equals(Orders.CONFIRMED)) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }

        Orders orders = new Orders();
        orders.setId(ordersDB.getId());
        // 更新订单状态,状态转为派送中
        orders.setStatus(Orders.DELIVERY_IN_PROGRESS);

        orderMapper.update(orders);
    }

    /**
     * 完成订单
     * @param id
     * @return
     */
    public void complete(Long id) {
        //查询订单
        Orders orderDB = orderMapper.getById(id);
        // 校验订单是否存在，并且状态为4
        if (orderDB == null || !orderDB.getStatus().equals(Orders.DELIVERY_IN_PROGRESS)) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        //设置status为5
        Orders orders=new Orders();
        orders.setId(orderDB.getId());
        orders.setStatus(Orders.COMPLETED);
        orders.setDeliveryTime(LocalDateTime.now());

        orderMapper.update(orders);
    }

    /**
     * 客户催单
     * @param id
     */
    public void reminder(Long id) {
        Orders ordersDB=orderMapper.getById(id);

        // 校验订单是否存在
        if (ordersDB == null) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        //通过wensocket向客户端浏览器推送消息 type orderIId content
        Map map = new HashMap();
        map.put("type",1);//1表示来电提醒 2表示用户催单
        map.put("orderId",id);
        map.put("content","订单号"+ordersDB.getNumber());

        String json =JSON.toJSONString(map);

        webSocketServer.sendToAllClient(json);


    }

    /**
     * 检查客户的收货地址是否超出配送范围
     * @param address
     */
    private void checkOutOfRange(String address) {
        Map map = new HashMap();
        map.put("address",shopAddress);
        map.put("output","json");
        map.put("ak",ak);

        //获取店铺的经纬度坐标
        String shopCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);

        JSONObject jsonObject = JSON.parseObject(shopCoordinate);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("店铺地址解析失败");
        }

        //数据解析
        JSONObject location = jsonObject.getJSONObject("result").getJSONObject("location");
        String lat = location.getString("lat");
        String lng = location.getString("lng");
        //店铺经纬度坐标
        String shopLngLat = lat + "," + lng;

        map.put("address",address);
        //获取用户收货地址的经纬度坐标
        String userCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);

        jsonObject = JSON.parseObject(userCoordinate);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("收货地址解析失败");
        }

       /* //数据解析
        location = jsonObject.getJSONObject("result").getJSONObject("location");
        lat = location.getString("lat");
        lng = location.getString("lng");
        //用户收货地址经纬度坐标
        String userLngLat = lat + "," + lng;

        map.put("origin",shopLngLat);
        map.put("destination",userLngLat);
        map.put("steps_info","0");

        //路线规划
        String json = HttpClientUtil.doGet("https://api.map.baidu.com/directionlite/v1/driving", map);

        jsonObject = JSON.parseObject(json);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("配送路线规划失败");
        }

        //数据解析
        JSONObject result = jsonObject.getJSONObject("result");
        JSONArray jsonArray = (JSONArray) result.get("routes");
        Integer distance = (Integer) ((JSONObject) jsonArray.get(0)).get("distance");

        if(distance > 500000){
            //配送距离超过5000米
            throw new OrderBusinessException("超出配送范围");
        }*/
    }


    /* *//**
     * 订单支付
     *
     * @param ordersPaymentDTO
     * @return
     */
    public OrderPaymentVO payment(OrdersPaymentDTO ordersPaymentDTO) throws Exception {
        // 当前登录用户id
        Long userId = BaseContext.getCurrentId();
        User user = userMapper.getById(userId);
        paySuccess(ordersPaymentDTO.getOrderNumber());

        //封装vo对象
        OrderPaymentVO vo=OrderPaymentVO.builder()
                .nonceStr("success")
                .paySign("lala")
                .timeStamp(String.valueOf(LocalDateTime.now()))
                .signType("Jwt")
                .packageStr("string")
                .build();

        /*//调用微信支付接口，生成预支付交易单
        JSONObject jsonObject = weChatPayUtil.pay(
                ordersPaymentDTO.getOrderNumber(), //商户订单号
                new BigDecimal(0.01), //支付金额，单位 元
                "苍穹外卖订单", //商品描述
                user.getOpenid() //微信用户的openid
        );

        if (jsonObject.getString("code") != null && jsonObject.getString("code").equals("ORDERPAID")) {
            throw new OrderBusinessException("该订单已支付");
        }*/

        /*OrderPaymentVO vo = jsonObject.toJavaObject(OrderPaymentVO.class);
        vo.setPackageStr(jsonObject.getString("package"));*/

        return vo;
    }

    /**
     * 支付成功，修改订单状态
     *
     * @param outTradeNo
     */
    public void paySuccess(String outTradeNo) {

        // 根据订单号查询订单
        Orders ordersDB = orderMapper.getByNumber(outTradeNo);

        // 根据订单id更新订单的状态、支付方式、支付状态、结账时间
        Orders orders = Orders.builder()
                .id(ordersDB.getId())
                .status(Orders.TO_BE_CONFIRMED)
                .payStatus(Orders.PAID)
                .checkoutTime(LocalDateTime.now())
                .build();

        orderMapper.update(orders);

       /* //通过wensocket向客户端浏览器推送消息 type orderIId content
        Map map = new HashMap();
        map.put("type",2);//1表示来电提醒 2表示用户催单
        map.put("orderId",ordersDB.getId());
        map.put("content","订单号"+outTradeNo);

        String json =JSON.toJSONString(map);

        webSocketServer.sendToAllClient(json);*/


    }
}
